<template>
  <div class='list' ref='wrapper'>
    <div>
      <div class='area'>
        <div class="title">当前城市</div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.currentCity}}</div>
          </div>
        </div>
      </div>
      <div class='area'>
        <div class="title">热门城市</div>
        <div class="button-list">
          <div class="button-wrapper" v-for='item of hotCities' :key='item.id' @click='handleCityClick(item.name)'>
            <div class="button">{{ item.name }}</div>
          </div>
        </div>
      </div>
      <div class='area' v-for='(items,key) in cities' :key='key' :ref='key' >
        <div class="title">{{ key }}</div>
        <div class="item-list">
          <div class="item border-bottom" v-for='item of items' :key='item.id' @click='handleCityClick(item.name)'>{{ item.name }}</div>
        </div>
      </div>
    </div>
  </div>
</template>
<script>
import BScroll from 'better-scroll'
import { mapState, mapActions } from 'vuex'
export default {
  name: 'CityList',
  props: {
    cities: Object,
    hotCities: Array,
    letter: String
  },
  methods: {
    handleCityClick (city) {
      // this.$store.dispatch('changeCity', city)
      this.changeCity(city)
      this.$router.push('./')
    },
    ...mapActions(['changeCity'])
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  },
  computed: {
    ...mapState({
      currentCity: 'city'
    })
  }
}

</script>
<style lang="stylus" scoped>
@import '~styles/varibles.styl'

.border-bottom::before {
  border-color: #ccc;
}

.list {
  overflow: hidden;
  position: absolute;
  top: 1.78rem;
  left: 0;
  right: 0;
  bottom: 0;

}

.title {
  line-height: .58rem;
  background: #eee;
  padding-left: .2rem;
  color: #666;
}

.button-list {
  overflow: hidden;
  padding: .1rem .6rem .1rem .1rem;

}

.button-wrapper {
  float: left;
  width: 33.33%;

}

.button {
  margin: .1rem;
  padding: .1rem 0;
  border-radius: .1rem;
  border: .02rem solid #ccc;
  text-align: center;
  font-size: .24rem;
}

.item {
  line-height: .76rem;
  padding-left: .2rem;
}

</style>
